<?php 
require_once("commom.inc.php");
$json = file_get_contents("php//input");
$liveDate = json_decode($json,false);
$lastTime = $liveDate->latTime;
if(!$lastTime)$lastTime = date('y:m:d h:i:S',time());
$sql = 'select = from chat_massage WHERE createTime>'$lastTime'";

